Portable reaction crucible for a metal thermal welding portion for single use

摘要

A single use, transportable reaction crucible for a metallothermic welding portion is provided. A separate cylindrical reaction vessel is disposed in the cylindrical casing of a non-metallic crucible shell, which has a flat base and a lid. The reaction vessel is supported on the base of the crucible shell and accommodates a welding portion. The outer diameter of the reaction vessel is less than an inner diameter of the cylindrical casing, with refractory material filling the annular intermediate space thereby formed between the reaction vessel and the cylindrical casing.